This work aims to study the effect of cold forming on texture evolution during manufacturing rectangular hollow sections. Conventional TMCP steel and a direct-quenched in 420 MPa strength level are compared. The was characterized at centerline (S=0) both surfaces (S=0.8) for base material, four flat side one corner samples section. results show that sides steels have minor intensity ∼{554}<225>...

The jet from a round Laval nozzle followed by cylindrical duct with an inner diameter of 10 mm and length 50 is investigated experimentally. has design Mach number 1.5. Quantitative flow visualization the issued exit performed over range pressure ratios 2.0 to 4.5 using rainbow schlieren deflectometry combined computed tomography investigate three-dimensional structure. features near-field shoc...

This work proposes a piecewise linear network model to approximate structures observed in an image. An energy function is used to capture the characteristics of the structure. The energy function consists of two parts: the prior energy term and the data energy term. The prior energy term is calculated using prior information about the structures of interest. The data energy term is calculated u...

This article describes a method that improves the performance of previous approaches for the automatic detection of the common carotid artery (CCA) lumen centerline on longitudinal B-mode ultrasound images. We propose to detect several lumen centerline candidates using local symmetry analysis based on local phase information of dark structures at an appropriate scale. These candidates are analy...

Data caption and conversion are two of the most costly operations of any GIS, in terms of computer time and manual work needed for spatial data acquisition. They can represent up to 80 percent of the total implementation costs. Manual digitising is a very error prone and costly operation, especially due to the lack of explicit topology in commercial GIS systems. Indeed, each map update might re...

We propose a semi-automatic approach for aorta centerline extraction in contrast-enhanced MRI, making aorta length analysis feasible on large scale. Starting from user-specified start and end regions, we extract the aorta path in between the regions automatically. The extraction is formulated as an optimization problem, seeking for the path that most likely runs central to the aorta. To this en...

Vocal tract morphology is an important factor in voice production. Its analysis has potential implications for educational matters as well as medical issues like voice therapy. The knowledge of the complex adjustments in the spatial geometry of the vocal tract during phonation is still limited. For a major part, this is due to difficulties in acquiring geometry data of the vocal tract in the pr...